code: def spm_ver(self):
      if self._spm_ver is None:
          self._set_properties()
      return self._spm_ver
  
file_path: nipy/nipy/interfaces/spm.py
imports: import os
  import numpy
  from nibabel import load
  from nibabel.tmpdirs import InTemporaryDirectory
  from scipy.io import savemat
  from .matlab import run_matlab_script
label_desc: Use image node_id 4 for calling the SpmInfo obj's underlying member method code with example usage: obj.spm_ver() and returns: self